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Simple Formula using COUNTIFS

Sonia Bowditch
on
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Last Modified: 2016-09-15
I have been struggling with this and it is driving me nuts.  I haven't used this formula before I would really appreciate if someone could point out where I am going wrong.  

Formula COUNTIFS(IDs when Year = Year and the week no matches the year)  
Test Data:
ID      YEAR      WEEK      COUNT
3      2009      22      
18      2009      22      
13      2009      33      
12      2010      22      
4      2010      29      
5      2011      33      
11      2011      56      
20      2012      1      
14      2013      33      
15      2013      33      
16      2013      33      
6      2013      55      
10      2013      55      
2      2015      4      
8      2015      7      
1      2016      5      
9      2016      7      
19      2016      39      
7      2016      56      
17      2016      56
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